What idea was most common to the middle class people?

The most common idea among middle-class people historically has been the pursuit of upward mobility and economic stability. This often manifested in a strong emphasis on education, hard work, and homeownership as pathways to improve one's social standing. Additionally, middle-class values typically include a belief in individualism, personal responsibility, and the importance of community and family life. These ideals have shaped their aspirations and lifestyle choices significantly.